The Keystone Gold-Copper District, Medicine Bow Mountains, Southeastern Wyoming
May 2002 by W. Dan HauselThe Keystone district includes a group of mineralized shear zones and veins that are associated with the Keystone Quartz Diorite in the Medicine Bow Mountains of southwestern Wyoming. Gold production from this district is unknown, although some estimates suggest that 7,500 to more than 12,000 ounces were produced.
I pulled out the nuggets I had worked on previously and looked at the size of the wire basket that the items to be cleaned are placed into. It looks much like a miniature french fry deep fryer.
The Golden Sunlight Mine in Whitehall wants to expand its open pit operations, possibly extending the life of the mine by five years.
…to see the huge differences between the gold production amounts of the Western States, let’s look at the gold production—both hard rock and placer—of these 13 states up to the present.
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There are situations where small-scale miners cannot use dredges or high bankers. This is when it’s time to join the ranks of the old timers and their use of hand methods. Back when a gold pan, pick and shovel and sluice or rocker box were the...
In these types of cases I tend to listen to what my metal detector is telling me. The machine was very quiet, suggesting my initial impressions were right about the ground make up.
There are several common ways that new mineral crystals form and grow. Perhaps the simplest is when minerals form through the cooling of molten rock and the atoms bond together into mineral crystals.
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